Phil Hamm

Retired

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Publications
Awards

Content by Phil Hamm

Potato Nematode Root-Knot Problem

The northern and Columbia root-knot nematode attacks potatoes and causes injury to tubers in the Columbia Basin of Oregon and Washington as well as other areas of the Pacific Northwest. Both nematodes blemish tubers and may render them unmarketable.

R. E. Ingham, Phil Hamm, Cynthia M. Ocamb | Mar 2023 | Online resource Peer reviewed (Gray level)

Potato Psyllid Vector of Zebra Chip Disease in the Pacific Northwest

This publication addresses the emergent issue in the Pacific Northwest of a potato infection called zebra chip disease, vectored by the potato psyllid. Includes information on the bacterium, the biology of the ...

Silvia I. Rondon, Alan Schreiber, Phil Hamm, Nora Olsen, Erik Wenninger, Carrie Wohleb, Tim Waters, Rodney Cooper, Darrin Walenta, Stuart Reitz | Jun 2023 | Extension Catalog publication Peer reviewed (Orange level)

Corn Smuts

Two types of smut attack corn in the Pacific Northwest: common smut and head smut. This publication provides descriptions of symptoms and the disease cycle, and management strategies (which differ considerably between...

S. Krishna Mohan, Phil Hamm, George Clough, Lindsey J. du Toit | Jul 2021 | Extension Catalog publication Peer reviewed (Orange level)

Biology and Management of the Potato Tuberworm in the Pacific Northwest

Discusses the status of the potato tuberworm in the Pacific Northwest, explains the pest's life cycle, and includes color photos for identification. Suggests strategies for monitoring and control, including cultural and chemical control methods.

Silvia I. Rondon, Sandy DeBano, George Clough, Phil Hamm, Andrew Jensen, Alan Schreiber, Juan M. Alvarez, Michael Thornton, James Barbour, Mahmut Dogramaci | Apr 2021 | Extension Catalog publication Peer reviewed (Orange level)

Managing Late Blight on Irrigated Potatoes in the Pacific Northwest

Discusses symptoms of late blight and biology of the late blight organism. Integrated pest management strategies cover between-season management, current-season management, and harvest and storage management considerations. ...

William H. Bohl, Phil Hamm, Phillip Nolte, Robert E. Thornton, Dennis A. Johnson | Jun 2023 | Extension Catalog publication Peer reviewed (Orange level)